citrulline

citrulline

[sit-rul´ēn]

an alpha amino acid involved in the urea cycle.

ci·trul·line

(sit'rul-ēn), Avoid the mispronunciation citrul'line.

An amino acid formed from l-ornithine in the course of the urea cycle as well as a product in nitric oxide biosynthesis; also found in watermelon (Citrullus vulgaris) and in casein. Elevated in individuals with a deficiency of argininosuccinate synthetase or argininosuccinate lyase.

citrulline

/cit·rul·line/ (sit´rul-ēn) an alpha-amino acid involved in urea production; formed from ornithine and itself converted into arginine in the urea cycle.

citrulline

(sĭt′rə-lēn′)

n.

An amino acid, C6H13N3O3, originally isolated from watermelon, that is produced as an intermediate in the conversion of ornithine to arginine during urea formation in the liver.

citrulline

[sitrul′ēn]

Etymology: L, Citrullus, watermelon

an amino acid produced from ornithine during the urea cycle. It is subsequently transformed to arginine by the transfer of a nitrogen atom from aspartate.

ci·trul·line

(sit'rŭ-lēn)

An amino acid formed from l-ornithine in the course of the urea cycle as well as a product in nitric oxide biosynthesis; also found in watermelon (Citrullus vulgaris) and in casein. Levels elevated in people with a deficiency of argininosuccinate synthetase or argininosuccinate lyase.

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